Lugar equivocado, momento equivocado

End of October, past midnight. You are expecting your eighteen year old son. He is well past his arrival time. You look out the window and see it finally appear. But you realize he's not alone: he's walking right up to a man, and he's armed. And when you see what he does, you can't believe what is happening: your teenage son, a fun and happy boy, has just killed a stranger on the street in front of your house. You don't know who he is. You don't know why. All you know is that your son has been arrested and his future is shattered. Desperate, you finally manage to fall asleep. Everything is lost. Until you wake up... and it's yesterday. And when you wake up again... it's the day before yesterday. Every morning you wake up a day earlier, a day further from the date of the murder. With another chance to stop it. The answers are in the past. The trigger for the crime... and you have no choice but to find them...